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A platform for research: civil engineering, architecture and urbanism
Low-shrinkage anti-cracking concrete
The invention discloses low-shrinkage anti-cracking concrete, and belongs to the technical field of building materials, the low-shrinkage anti-cracking concrete is characterized in that the concrete comprises, by weight, 580-610 parts of a cementing material, 780-880 parts of machine-made sand, 900-940 parts of gravel, 25-35 parts of an additive and 130-160 parts of water, the cementing material comprises cement, fly ash, mineral powder and slag, and according to the weight ratio, the cementing material comprises the cement, the fly ash, the mineral powder and the slag. The ratio of the cement to the fly ash to the mineral powder to the slag is 5: (1.6-2.1): (1.2-1.7): (0.9-1.3), so that the effect of reducing the shrinkage rate of the concrete is achieved.
本发明公开了一种低收缩抗开裂混凝土，属于建筑材料技术领域，其技术方案要点是，所述混凝土按重量份计包括胶凝材料580‑610份、机制砂780‑880份、碎石900‑940份、外加剂25‑35份、水130‑160份，其中胶凝材料包括水泥、粉煤灰、矿粉和矿渣，按重量比计，水泥：粉煤灰：矿粉：矿渣为5：（1.6‑2.1）：（1.2‑1.7）:（0.9‑1.3）达到降低混凝土的收缩率的效果。
Low-shrinkage anti-cracking concrete
The invention discloses low-shrinkage anti-cracking concrete, and belongs to the technical field of building materials, the low-shrinkage anti-cracking concrete is characterized in that the concrete comprises, by weight, 580-610 parts of a cementing material, 780-880 parts of machine-made sand, 900-940 parts of gravel, 25-35 parts of an additive and 130-160 parts of water, the cementing material comprises cement, fly ash, mineral powder and slag, and according to the weight ratio, the cementing material comprises the cement, the fly ash, the mineral powder and the slag. The ratio of the cement to the fly ash to the mineral powder to the slag is 5: (1.6-2.1): (1.2-1.7): (0.9-1.3), so that the effect of reducing the shrinkage rate of the concrete is achieved.
本发明公开了一种低收缩抗开裂混凝土，属于建筑材料技术领域，其技术方案要点是，所述混凝土按重量份计包括胶凝材料580‑610份、机制砂780‑880份、碎石900‑940份、外加剂25‑35份、水130‑160份，其中胶凝材料包括水泥、粉煤灰、矿粉和矿渣，按重量比计，水泥：粉煤灰：矿粉：矿渣为5：（1.6‑2.1）：（1.2‑1.7）:（0.9‑1.3）达到降低混凝土的收缩率的效果。
Low-shrinkage anti-cracking concrete
一种低收缩抗开裂混凝土
RONG ZHIHONG (author) / GAO WEIDONG (author) / ZHANG SANPENG (author)
2022-04-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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